Method, computer device and computer readable recording medium for providing natural language conversation by timely providing substantial reply

A computer device configured to provide a natural language conversation, the computer device comprising:

• a user input receiving module configured to receive a natural language input;
• an input interpretation module configured to determine a user input based on the natural language input by processing the natural language input;
• and
• a response providing module configured to provide a natural language response corresponding to the natural language input, based on at least one of the natural language input and the determined user intent,
• wherein the determined user intent is associated with at least one of execution of a specific task, provision of specific information, and a simple statement, and
• wherein the response providing module is further configured to determine whether a predetermined first condition is satisfied, wherein whether or not the first condition is satisfied is determined based on whether it is possible to obtain all sufficient information from the natural language input for the execution of the specific task, the provision of the specific information, or the simple statement that is associated with the determined user intent, without having to request additional information, and, when the first condition is satisfied, determine whether a predetermined second condition is satisfied, and provide a natural language response belonging to a category of substantial replies when the second condition is satisfied.